Diesel Exhaust Fluid (DEF) : A Clean Air Solution
To meet stringent emissions regulations for nitrogen oxides (NOx), many modern diesel engines employ Selective Catalytic Reduction (SCR) technology. This system uses a catalyst to convert harmful NOx compounds into harmless nitrogen gas (N2).
What is DEF?
Diesel Exhaust Fluid (DEF) is a crucial component of SCR systems. It is a solution composed of 32.5% urea and 67.5% deionized water. Urea, the first organic compound synthesized from inorganic chemicals, plays a vital role in the NOx reduction process.
Why DEF?
Unlike the relatively harmless N2, NOx compounds pose significant health risks when inhaled, contribute to acid rain, and contribute to ozone depletion. By reducing NOx emissions, DEF helps to improve air quality and protect public health.
Diesel vs. Gasoline Engines
Diesel engines tend to produce more NOx due to their higher operating temperatures. This makes SCR systems, and the use of DEF, necessary to meet emissions standards. Gasoline engines, on the other hand, typically produce lower levels of NOx and do not require SCR technology.
Specifications
- SO 22241-1: 2006
- S :17042(PART 1): 2018
Applications
SPEL NONOX is recommended for modern Commercial Vehicles (Trucks & Buses), Diesel SUVs and any other BS IV / VI or (Euro IV/V/VI) compliant diesel engines employing SCR / EGR-SCR technology for NOx reduction.
